1 /*
2 * Copyright 2020 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 */
24
25 #include "dc/dc_stat.h"
26 #include "dmub/dmub_srv_stat.h"
27 #include "dc_dmub_srv.h"
28
29 /**
30 * DOC: DC STAT Interface
31 *
32 * These interfaces are called without acquiring DAL and DC locks.
33 * Hence, there is limitations on whese interfaces can access. Only
34 * variables exclusively defined for these interfaces can be modified.
35 */
36
37 /**
38 *****************************************************************************
39 * Function: dc_stat_get_dmub_notification
40 *
41 * @brief
42 * Calls dmub layer to retrieve dmub notification
43 *
44 * @param
45 * [in] dc: dc structure
46 * [in] notify: dmub notification structure
47 *
48 * @return
49 * None
50 *****************************************************************************
51 */
dc_stat_get_dmub_notification(const struct dc * dc,struct dmub_notification * notify)52 void dc_stat_get_dmub_notification(const struct dc *dc, struct dmub_notification *notify)
53 {
54 /**
55 * This function is called without dal and dc locks, so
56 * we shall not modify any dc, dc_dmub_srv or dmub variables
57 * except variables exclusively accessed by this function
58 */
59 struct dmub_srv *dmub = dc->ctx->dmub_srv->dmub;
60 enum dmub_status status;
61
62 status = dmub_srv_stat_get_notification(dmub, notify);
63 ASSERT(status == DMUB_STATUS_OK);
64
65 /* For HPD/HPD RX, convert dpia port index into link index */
66 if (notify->type == DMUB_NOTIFICATION_HPD ||
67 notify->type == DMUB_NOTIFICATION_HPD_IRQ ||
68 notify->type == DMUB_NOTIFICATION_SET_CONFIG_REPLY) {
69 notify->link_index =
70 get_link_index_from_dpia_port_index(dc, notify->link_index);
71 }
72 }
73
74 /**
75 *****************************************************************************
76 * Function: dc_stat_get_dmub_dataout
77 *
78 * @brief
79 * Calls dmub layer to retrieve dmub gpint dataout
80 *
81 * @param
82 * [in] dc: dc structure
83 * [in] dataout: dmub gpint dataout
84 *
85 * @return
86 * None
87 *****************************************************************************
88 */
dc_stat_get_dmub_dataout(const struct dc * dc,uint32_t * dataout)89 void dc_stat_get_dmub_dataout(const struct dc *dc, uint32_t *dataout)
90 {
91 struct dmub_srv *dmub = dc->ctx->dmub_srv->dmub;
92 enum dmub_status status;
93
94 status = dmub_srv_get_gpint_dataout(dmub, dataout);
95 ASSERT(status == DMUB_STATUS_OK);
96 }
97